CN107565767B - The manufacturing method of brush disk - Google Patents
The manufacturing method of brush disk Download PDFInfo
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- CN107565767B CN107565767B CN201710498710.5A CN201710498710A CN107565767B CN 107565767 B CN107565767 B CN 107565767B CN 201710498710 A CN201710498710 A CN 201710498710A CN 107565767 B CN107565767 B CN 107565767B
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Abstract
The present invention provides a kind of manufacturing method of brush disk, manufactures brush disk used in brush motor according to the following steps.Firstly, combination carries out molding upper mold to the upper surface of brush disk, molding lower mold is carried out to the lower surface of brush disk and carries out molding slider mould to the inner surface in brush carrier portion.Next, flowing into molten resin into the cavity formed by upper mold, lower mold and slider mould.Then, solidify the molten resin in cavity.Finally, opening upper mold, lower mold and slider mould, brush disk after molding is taken out.Upper mold, which has, carries out molding lug upper surface forming part to the upper surface of flange part.Moreover, slider mould is configured in the top of lug upper surface forming part.Therefore, slider mould is unrelated with the molding of the upper surface of flange part.Therefore, the parting line due to caused by slider mould is not will form on the upper surface of flange part.
Description
Technical field
The present invention relates to a kind of manufacturing methods of brush disk used in brush motor.
Background technique
In the past, there is known a kind of contacts by between brush and commutator has brush come the so-called of switching for carrying out electric current
Motor.About previous brush motor, for example, on the books in Japanese Kokai special open 2014-39381 bulletin.The public affairs
The motor of report includes yoke, with canister portion；Brush carrier keeps brush；And bracket, it is configured to cover on the outside of brush carrier
The opening portion of lid yoke.
In addition, water droplet invades the inside of motor in order to prevent, and sets on the peripheral part of brush carrier in the motor of the bulletin
It is equipped with sealing.
Summary of the invention
In this motor, the brush disk of brush is kept to manufacture by the injection moulding of resin.At this point, due in brush
Brush is kept in a manner of moving radially on the upper surface of disk, therefore, it is necessary to mold the cylindrical portion extended radially.
Therefore, other than a pair of of the mold combined in the up-down direction, it is also necessary to the horizontally mobile sliding block being combined of sliding
Mold.But if having used slider mould, then will form on the upper surface of the peripheral part of brush disk as mold and mould
The parting line (small protrusion) of the trace of boundary line between tool.Divide if existing on the upper surface of the peripheral part of brush disk
If molded line, gap can be generated between brush disk and sealing, the close property of the two can reduce.Brush motor is anti-as a result,
Aqueous, dust tightness and assembly precision reduce sometimes.
The purpose of the present invention is to provide not will form on a kind of upper surface of peripheral part in brush disk due to slide-action die
Parting line caused by tool manufactures the manufacturing method of brush disk.
The illustrative invention of the application is a kind of manufacturing method of brush disk used in brush motor, described to have brush horse
Up to armature is included, the above lower central axis extended is pivoted about；There is the casing of cap tube shape, by the armature
It is accommodated in inside；Commutator is connect with the armature；Brush is contacted with the commutator；Bracket covers the machine
The lower part of shell；And the brush disk, it is configured between the casing and the bracket, the brush disk is single tree
Rouge molded part includes disk base portion, annularly extends around the central axis；The brush carrier portion of tubular, is set
On the upper surface of the disk base portion, the brush, which is kept into, to be moved radially；Flange part, from the disk base portion
Peripheral part to radial outside extend；And bearing surface, the lower end of the casing is supported, the manufacturing method has following
Process: process a), by the upper surface of the brush disk carry out molding upper mold, to the lower surface of the brush disk carry out at
It the lower mold of type and molding slider mould is carried out to the inner surface in the brush carrier portion combines；Process b), in the work
After sequence a), molten resin is injected into the cavity formed by the upper mold, the lower mold and the slider mould；Work
Sequence c) solidifies the molten resin in the cavity after the process b)；And process d), after the process c),
The upper mold, the lower mold and the slider mould are opened, the brush disk after molding, the upper mold tool are taken out
Have and molding lug upper surface forming part is carried out to the upper surface of the flange part, the slider mould is configured in the flange
The top of upper surface forming part.
According to the illustrative invention of the application, slider mould is unrelated with the molding of the upper surface of flange part.Therefore, will not
The parting line due to caused by slider mould is formed on the upper surface of flange part.Thereby, it is possible to improve the waterproof of brush motor
Property, dust tightness and assembly precision.
Detailed description of the invention
Fig. 1 is the stereoscopic figure of motor.
Fig. 2 is the longitudinal section view of motor.
Fig. 3 is the exploded perspective view of bracket, brush disk, upper seal member and sealing portion part.
Fig. 4 is the top view of bracket, brush disk and upper seal member.
Fig. 5 is the longitudinal section view of bracket, brush disk, upper seal member and sealing portion part.
Fig. 6 is the figure of situation when showing the injection moulding of brush disk.
Fig. 7 is the figure of situation when showing the injection moulding of brush disk.
Fig. 8 is the figure of situation when showing the injection moulding of brush disk.
Fig. 9 is the figure of situation when showing the injection moulding of brush disk.
Figure 10 is the figure of situation when showing the injection moulding of brush disk.
Figure 11 is the bottom view of brush disk.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to illustrative embodiment of the invention.It, will be in addition, in this application
The direction of the centerline axis parallel of motor is known as " axial direction ", and the direction of the central axis upright with motor is known as " radial direction ", will
It is known as " circumferential direction " along the direction of the circular arc centered on the central axis of motor.But above-mentioned " parallel direction " also includes
Substantially parallel direction.In addition, above-mentioned " vertical direction " also includes generally perpendicular direction.
In addition, in this application, being used as up and down direction for axial, the shape to each portion is come on casing side relative to bracket
Shape and positional relationship are illustrated.But, it is not intended to brush motor and brush disk are limited by the definition of the up and down direction
Manufacture when and use when direction.
Fig. 1 is the outer of the motor 1 of the brush disk 24 manufactured with the manufacturing method using first embodiment of the invention
See perspective view.Fig. 2 is the longitudinal section view of motor 1.The motor 1 is to contact brush 23 with commutator 33 to carry out the switching of electric current
So-called brush motor.
On the position of the motor 1 of present embodiment attachment such as being configured in water and dust on motor vehicle.But, this hair
It's not limited to that for bright motor.
As shown in Fig. 2, motor 1 has stationary part 2 and rotating part 3.Stationary part 2 is fixed on the device equipped with motor 1
Framework on.Rotating part 3 is supported to rotate relative to stationary part 2.
The stationary part 2 of present embodiment have casing 21,22,2 brushes 23 of bracket, brush disk 24, upper seal member 25,
Sealing portion part 26, multiple magnet 27, upper bearing portion 28 and bearing portions 29.
Casing 21 is the component for having cap tube shape, with cylindrical portion 211, top plate portion 212 and annular plate section 213.Cylinder
The cylindrical extension in the up-down direction around central axis 9 of portion 211.The top of 212 closed circular canister portion 211 of top plate portion
Opening.Annular plate section 213 is extended from the lower end of cylindrical portion 211 to radial outside.Casing 21 adds for example, by the punching press of metal
Work and formed.Multiple magnet 27 and armature 32 described hereinafter are incorporated in the inside of casing 21.
Bracket 22 is the component for covering the shallow bowl shape of lower part of casing 21.The shape for example, by the casting of metal of bracket 22
At.The peripheral part of bracket 22 and the annular plate section 213 of casing 21 are mutually fixed by multiple screws.In addition, in bracket 22
Centre is provided with the through hole 220 for passing through axis 31 described hereinafter.
Brush 23 is the component of the quadrangular shape of the electric conductivity contacted with the commutator 33 of 3 side of rotating part.Brush 23 rises
To the effect for being electrically connected external power supply device and commutator 33.Brush 23 has the conducting wire for being referred to as pigtail, via rear
Electronic component described in text or conductive plate and be electrically connected with the terminal 243 of connector portion 242 described hereinafter.In 2 brushes 23
One be positive brush.It is in 2 brushes 23 the other is cathode brush.Each brush 23 has the piece 331 with commutator 33
The contact surface 231 of contact.In addition, each brush 23 is added to radially inner side always by spring 60 being arranged on brush disk 24
Pressure.Contact surface 231 is compressed against on piece 331 as a result,.
Brush disk 24 is mainly used for keeping the component of 2 brushes 23.The injection moulding shape that brush disk 24 passes through resin
At.Brush disk 24 has substantially disk-shaped disc main body portion 241 and connector portion 242.Disc main body portion 241 is by being sandwiched in casing
It is fixed between 21 and bracket 22.Connector portion 242 is located at the outside for the shell being made of casing 21 and bracket 22.In motor
1 in use, being connect from the conducting wire that external power supply device stretches out with the terminal 243 in connector portion 242.About brush disk 24
Detailed construction, will illustrate later.
Upper seal member 25 and sealing portion part 26 are for preventing dust and water from invading from the peripheral part in disc main body portion 241
The component of inside.The material of upper seal member 25 and sealing portion part 26 is for example using flexible rubber or elastomer.On
Seal member 25 and sealing portion part 26 are respectively provided with the circular shape of the peripheral part along disc main body portion 241.Upper sealing
Component 25 is between the annular plate section 213 and disc main body portion 241 of casing 21.Sealing portion part 26 is between the peripheral part of bracket 22
Between disc main body portion 241.In addition, upper seal member 25 covers a part of the outer peripheral surface of the peripheral part in disc main body portion 241, and
Part of it exposes between casing 21 and bracket 22.
Multiple magnet 27 are fixed on the inner peripheral surface of cylindrical portion 211 of casing 21.The face of the radially inner side of each magnet 27
As with armature 32 described hereinafter opposed magnetic pole strength radially.
Upper bearing portion 28 and bearing portions 29 are that the axis 31 of 3 side of rotating part is supported to the mechanism that can be rotated.Upper bearing (metal)
Portion 28 is incorporated in the recess portion in center for the top plate portion 212 for being set to casing 21.Bearing portions 29, which are incorporated in, is set to support
In the recess portion in the center of frame 22.
The rotating part 3 of present embodiment has axis 31, armature 32 and commutator 33.
Axis 31 is the columnar component extended along central axis 9.Axis 31 is supported by upper bearing portion 28 and bearing portions 29
Pivoted about with central axis 9.Axis 31 passes through the through hole 220 of bracket 22 and protrudes downwards than bracket 22.Axis
31 lower end is connect with the driving portion of the device equipped with the motor 1.
Armature 32 is configured in the radially inner side of magnet 27.Armature 32 has iron core 41 and multiple coils 42.Iron core 41 has
There are multiple teeth 412 of circular core-back 411 and convolute coil 42.
Commutator 33 is substantially cylindric component, carries out cutting for driving current by contacting rotation with brush 23
It changes.Commutator 33 is fixed on axis 31 than the position of armature 32 on the lower.It is multiple on the outer peripheral surface of commutator 33
Piece 331 is connect by means of hook 332 with the coil of armature 32 42.
In motor 1 in use, from external power supply device via connector portion 242, brush 23 and piece 331 and to line
Circle 42 provides driving current.In this way, generating radial magnetic flux on armature 32.As a result, due between armature 32 and magnet 27
Magnetic attraction and magnetic repulsion and generate circumferential torque.As a result, rotating part 3 is with central axis 9 relative to stationary part 2
Center is rotated.
In addition, the contact surface 231 of each brush 23 is successively contacted with multiple 331 when commutator 33 is rotated.By
This, is switched to the direction of the energization of each coil 42, successively provides driving current to multiple coils 42.As a result, rotating part 3
It continuously rotates.
Then, the more detailed structure of brush disk 24 is illustrated.
Fig. 3 is the exploded perspective view of bracket 22, brush disk 24, upper seal member 25 and sealing portion part 26.Fig. 4 is support
The top view of frame 22, brush disk 24 and upper seal member 25.Fig. 5 is bracket 22, the electricity that the position V-V from Fig. 4 is observed
The longitudinal section view of brush 24, upper seal member 25 and sealing portion part 26.
As described above, brush disk 24 is single resin molding part, with disc main body portion 241 and connector portion 242.This
Outside, as shown in Fig. 3~Fig. 5, disc main body portion 241 has disk base portion 51, peripheral wall portion 52, flange part 53 and 2 brush carrier portions 54.
Disk base portion 51 annularly extends around central axis 9.Disk base portion 51 has through hole 510 in center.It is above-mentioned
Axis 31 passes through through hole 510 and extends up and down.On the upper surface of disk base portion 51 configured with above-mentioned 2 brushes 23 and with from electricity
The electronic components such as the choking-winding of pigtail connection that brush 23 is drawn.Each brush 23 and the terminal 243 in connector portion 242 via
It configures electronic component and conductive plate on the upper surface of disk base portion 51 and is electrically connected.
Peripheral wall portion 52 is in that substantially cylindrical shape extends from the peripheral part of disk base portion 51 upward.Peripheral wall portion 52 is inserted into machine
The inside of the cylindrical portion 211 of shell 21.Moreover, the inner circumferential face contact of the lower end of the outer peripheral surface of peripheral wall portion 52 and cylindrical portion 211.By
This, the radial positional relationship between casing 21 and brush disk 24 is fixed.That is, the outer peripheral surface of peripheral wall portion 52 becomes bearing casing
The bearing surface of 21 lower end.In addition, peripheral wall portion 52 has 2 notch 521.The diameter that each notch 521 is located at brush carrier portion 54 is outside
Side.Later when the injection moulding of the brush disk 24, slider mould 83 is configured at the position for being equivalent to notch 521.
Flange part 53 is extended from the peripheral part of disk base portion 51 to radial outside.That is, flange part 53 is leaning on diameter than peripheral wall portion 52
The extension annular in shape of position outward.Above-mentioned upper seal member 25 is between the upper surface of flange part 53 and the ring-type of casing 21
Between the lower surface in plate portion 213.Above-mentioned sealing portion part 26 is between the lower surface of flange part 53 and the peripheral part of bracket 22
Between upper surface.In addition, upper seal member 25 and sealing portion part 26 are close to the surface of flange part 53 respectively.Upper seal member
25 a part also covers a part of the outer peripheral surface of flange part 53.Connector portion 242 is located at the radial outside of flange part 53.It is logical
Crossing clamps the upper and lower surface of flange part 53 across upper seal member 25 and sealing portion part 26 by casing 21 and bracket 22 respectively,
To which the axial positional relationship of casing 21, bracket 22 and brush disk 24 is fixed.
2 brush carrier portions 54 are arranged on the upper surface of disk base portion 51.2 brush carrier portions 54 match at spaced intervals in the circumferential
It sets.In the example of Fig. 4,2 brush carrier portions 54 are configured relative to central axis 9 with 90 ° each other of interval.Each brush carrier portion 54 is in radial direction
On be cylindrical in shape extension.Above-mentioned brush 23 is incorporated in the inside in brush carrier portion 54, and is maintained as to exist along brush carrier portion 54
Radially move.
In addition, being equipped with 2 springs 60 on the upper surface of disk base portion 51.In the present embodiment, make as spring 60
With torsional spring.One end of each spring 60 is fixed on disk base portion 51.The other end of each spring 60 and the radial outside of brush 23
End face contact.In addition, spring 60 is mounted with state more curved than nature.Therefore, spring 60 is always to 23 court of brush
It pressurizes to radially inner side.Brush 23 is compressed against on commutator 33 as a result,.In addition, although bearing surface is formed in peripheral wall portion 52
On outer peripheral surface, but it is also possible on the outer peripheral surface for the step being formed between disk base portion 51 and flange part 53.
Next, the step of to when manufacturing brush disk 24 by being injection moulded, is illustrated.Fig. 6~Figure 10 is to show electricity
The figure of situation when the injection moulding of brush 24.
When manufacturing brush disk 24, prepare upper mold 81 corresponding with the shape of brush disk 24, lower mold 82 and 2 cunnings
Block mold 83.Upper mold 81 is to carry out molding mold for the upper surface to brush disk 24.Lower mold 82 is for brush
The lower surface of disk 24 carries out molding mold.In addition, 2 slider moulds 83 are formed for the inner surface to brush carrier portion 54
Mold.
Firstly, as shown in fig. 6, group closed die 81 and lower mold 82.Specifically, making the lower end surface of upper mold 81 under
The upper surface of mold 82 is in contact with each other.Cavity is formed between the lower surface of upper mold 81 and the upper surface of lower mold 82 as a result,.
In addition, upper mold 81 has hole portion 84 at 2 circumferential positions.The lateral surface of each hole portion 84 from upper mold 81 is inside towards diameter
Side extends.
Next, as shown in fig. 7, slider mould 83 is inserted into hole portion 84.Slider mould 83 has base portion 831 and end
Portion 832, the terminal part 832 is located at than base portion 831 by the position of the end side of direction of insertion, thinner than base portion 831.Base portion 831
It is seamlessly embedded in upper mold 81 near the opening of the hole portion 84 on the lateral surface for being set to upper mold 81.Terminal part 832
It is being inserted between upper mold 81 and lower mold 82 than base portion 831 by the position of radially inner side.Upper mold 81, lower mold as a result,
82 and slider mould 83 be grouped together.Also, in the mould being made of upper mold 81, lower mold 82 and slider mould 83
The inside of tool forms closed cavity 80 corresponding with the shape of brush disk 24.
Then, as shown in figure 8, injecting molten resin 240 into cavity 80.Specifically, from cast gate 820 into cavity 80
Molten resin 240 after injection is pressurized, the cast gate 820 is the hole for being set to lower mold 82.In molten resin 240 throughout sky
After entirety in chamber 80, next, solidifying the molten resin 240 in cavity 80.Molten resin 240 becomes solid-state as a result,
Brush carrier portion 54.
Later, as shown in figure 9, extracting slider mould 83 from hole portion 84.Then, as shown in Figure 10,81 He of upper mold is opened
Lower mold 82 takes out brush disk 24 after molding from upper mold 81 and lower mold 82.Thereby, it is possible to obtain as single resin
The brush disk 24 of molded part, with disk base portion 51, peripheral wall portion 52, flange part 53 and brush carrier portion 54.
Herein, brush carrier portion 54 is formed in around the terminal part 832 of slider mould 83.That is, in the upper surface of terminal part 832
Brush carrier portion 54 is formed between two sides and upper mold 81 and lower mold 82.
In addition, upper mold 81 has lug upper surface forming part 811 as shown in Fig. 6~Figure 10.The upper surface of flange part 53
It is formed by lug upper surface forming part 811.Above-mentioned hole portion 84 is located at the top of lug upper surface forming part 811.Cause
This, slider mould 83 is configured in the top of lug upper surface forming part 811.Therefore, slider mould 83 and flange part 53 is upper
The molding on surface is unrelated.Therefore, the parting line due to caused by slider mould 83 will not be formed on the upper surface of flange part 53.
Thereby, it is possible to inhibit to generate gap between flange part 53 and upper seal member 25.As a result, can be improved the machine of motor 1
Waterproofness, dust tightness and assembly precision between shell 21 and brush disk 24.
In particular, in the present embodiment, the lower surface of lug upper surface forming part 811 is in around central axis 9
Annular shape is connected.Therefore, the upper surface of flange part 53 on complete cycle by the lug upper surface forming part 811 of upper mold 81 by
Molding.Therefore, on the complete cycle of the upper surface of flange part 53, it not will form parting line.Thereby, it is possible to further increase motor 1
Waterproofness, dust tightness and assembly precision.
In addition, in the present embodiment, upper mold 81 is integrally to carry out molding single mould to the upper surface of flange part 53
Tool.Therefore, parting line can be excluded from the upper surface of flange part 53.Thereby, it is possible to further increase the waterproofness of motor 1, prevent
Dirt and assembly precision.
In addition, the lower mold 82 in present embodiment has flange lower surface forming part 821 as shown in Fig. 6~Figure 10.It is convex
The lower surface of edge 53 is formed by flange lower surface forming part 821.The upper surface of flange lower surface forming part 821 is in
It is annular in shape around mandrel line 9 to be connected.Therefore, the lower surface of flange part 53 passes through the flange following table of lower mold 82 on complete cycle
Face forming part 821 and be formed.Therefore, parting line will not be formed on the complete cycle of the lower surface of flange part 53.Thereby, it is possible to
Inhibition generates gap between flange part 53 and sealing portion part 26.As a result, the bracket 22 of motor 1 can be further increased
Waterproofness, dust tightness and assembly precision between brush disk 24.
In addition, in the present embodiment, lower mold 82 is integrally to carry out molding single mould to the lower surface of flange part 53
Tool.Therefore, parting line can be excluded from the lower surface of flange part 53.Thereby, it is possible to further increase the waterproofness of motor 1, prevent
Dirt and assembly precision.
Figure 11 is the bottom view of the brush disk 24 manufactured by the above method.As shown in figure 11, brush disk 24 is in disk base portion
There are 2 gate vestiges 55 on 51 lower surface.As described above, in the injection moulding of brush disk 24, from being set to lower mold
82 cast gate 820 injects molten resin 240.Gate vestiges 55 are the traces of the cast gate 820.In the present embodiment, with 2
Cast gate 820 is set on the circumferentially-adjacent position of slider mould 83.Therefore, brush disk 24 after molding is circumferential with each brush carrier portion 54
There are gate vestiges 55 at adjacent position.
Region in brush disk 24 where brush carrier portion 54 is formed narrow due to using slider mould 83 in cavity 80
Position.Accordingly, it is difficult to make molten resin 240 over to deeper inside, it is bad to be easy to produce molding.But if in slide-action die
Cast gate 820 is configured near tool 83, then can make small space of the molten resin 240 efficiently around slider mould 83.
In addition, being preferably 45 ° or less relative to the angle interval between central axis 9, slider mould 83 and cast gate 820.That is, at
In brush disk 24 after type, it is preferably relative to the angle interval between central axis 9, brush carrier portion 54 and gate vestiges 55
45 ° or less.
Although if assuming, brush carrier portion is in addition, the brush disk 24 of present embodiment is made of single resin molding part
It is combined with structure made of multiple resin molding parts, then no longer needing to carry out molding slider mould to brush carrier portion.In this way, if
It is the multiple resin molding parts of combination to constitute brush disk, then can not forms parting line on flange part.But if by multiple
Resin molding part constitutes brush disk, then can due to number of components and assembling working hour increase and lead to increased costs.In addition, by
In with assembly error, the dimensional accuracy that will lead to brush disk is easy decline.If the dimensional accuracy in especially brush carrier portion is deteriorated,
Can become causes brush the bad reason such as cannot swimmingly move relative to commutator inclination contact or brush.
More than, although illustrative embodiment of the invention is illustrated, the present invention is not limited to upper
State embodiment.
In the above-described embodiment, as shown in fig. 6, after group closed die and lower mold, as shown in fig. 7, by sliding block
Mold inserts in the hole portion of upper mold.But it is also possible to be closed by the hole portion of slider mould insertion upper mold and then group
Mold and lower mold.
In addition, in the above-described embodiment, brush disk maintains 2 brushes.But the quantity of the brush of brush disk holding
The other quantity being also possible to other than 2.For example, it is also possible to keep the total of 2 positive brushes and 2 cathode brushes in brush disk
4 brushes.
In addition, in the above-described embodiment, cast gate is only provided on lower mold.But cast gate can also be provided only on
On upper mold.In addition, the both sides in upper mold and lower mold also can be set in cast gate.
In addition, the shape of the details about each component, may also be distinct from that shape shown in each figure of the application.
In addition it is also possible to suitable to each element occurred in above embodiment and variation in the range of not generating contradiction
Locality is combined.
Claims (9)
1. the manufacturing method of brush disk used in a kind of brush motor,
The brush motor includes
Armature, the above lower central axis extended pivot about；
There is the casing of cap tube shape, the armature is accommodated in inside；
Commutator is connect with the armature；
Brush is contacted with the commutator；
Bracket covers the lower part of the casing；And
The brush disk, is configured between the casing and the bracket,
The brush disk is single resin molding part, is included
Disk base portion annularly extends around the central axis；
The brush carrier portion of tubular is arranged on the upper surface of the disk base portion, and the brush is kept into can be radially
It is mobile；
Flange part is extended from the peripheral part of the disk base portion to radial outside；And
Bearing surface supports the lower end of the casing,
The manufacturing method has following processes:
Process a), by the upper surface of the brush disk carry out molding upper mold, to the lower surface of the brush disk carry out at
It the lower mold of type and molding slider mould is carried out to the inner surface in the brush carrier portion combines；
Process b), after the process a), to the sky formed by the upper mold, the lower mold and the slider mould
Intracavitary injection molten resin；
Process c) solidifies the molten resin in the cavity after the process b)；And
Process d) opens the upper mold, the lower mold and the slider mould after the process c), take out at
The brush disk after type,
The manufacturing method is characterized in that,
The upper mold, which has, carries out molding lug upper surface forming part, table on the flange to the upper surface of the flange part
The lower surface of face forming part is annular in shape around the central axis to be connected,
The slider mould is configured in the top of the lug upper surface forming part.
2. the manufacturing method according to claim 1, which is characterized in that
The upper mold has the hole portion extended radially in the top of the lug upper surface forming part,
The slider mould is inserted into the hole portion.
3. the manufacturing method according to claim 1, which is characterized in that
The brush motor also includes
Upper seal member, between the upper surface of the flange part and the lower edge of the casing,
Sealing portion part, between the lower surface of the flange part and the upper surface of the bracket.
4. the manufacturing method according to claim 1, which is characterized in that
The upper mold is integrally to carry out molding single mold to the upper surface of the flange part.
5. the manufacturing method according to claim 1, which is characterized in that
The lower mold has cricoid flange lower surface forming part,
The lower surface of the flange part is formed using the flange lower surface forming part.
6. manufacturing method according to claim 5, which is characterized in that
The lower mold is integrally to carry out molding single mold to the lower surface of the flange part.
7. the manufacturing method according to claim 1, which is characterized in that
The upper mold is integrally to carry out molding single mold to the upper surface of the flange part,
The lower mold has cricoid flange lower surface forming part,
The lower surface of the flange part is formed using the flange lower surface forming part,
The lower mold is integrally to carry out molding single mold to the lower surface of the flange part.
8. according to claim 1 to manufacturing method described in any one in 7, which is characterized in that
The brush disk also has the peripheral wall portion that the peripheral part from the disk base portion extends upward,
The outer peripheral surface of the peripheral wall portion is the bearing surface,
The peripheral wall portion has the notch of the radial outside positioned at the brush carrier portion.
9. according to claim 1 to manufacturing method described in any one in 7, which is characterized in that
The lower mold has the cast gate flowed into for molten resin,
45 ° or less are spaced in relative to the angle between the central axis, described slider mould and the cast gate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016130747A JP2018007399A (en) | 2016-06-30 | 2016-06-30 | Manufacturing method of brush card |
| JP2016-130747 | 2016-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107565767A CN107565767A (en) | 2018-01-09 |
| CN107565767B true CN107565767B (en) | 2019-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710498710.5A Active CN107565767B (en) | 2016-06-30 | 2017-06-27 | The manufacturing method of brush disk |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018007399A (en) |
| CN (1) | CN107565767B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908821A (en) * | 2018-06-28 | 2018-11-30 | 大同新成新材料股份有限公司 | A kind of manufacturing method of brush disk |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100729809B1 (en) * | 2006-04-20 | 2007-06-18 | 동양기전 주식회사 | Brush holder |
| JP2014023186A (en) * | 2012-07-12 | 2014-02-03 | Asmo Co Ltd | Brush holder device and motor |
| KR20150052988A (en) * | 2013-11-07 | 2015-05-15 | 태일산업 주식회사 | Brush card for DC motor and manufacturing method thereof |
-
2016
- 2016-06-30 JP JP2016130747A patent/JP2018007399A/en active Pending
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| Publication number | Publication date |
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| JP2018007399A (en) | 2018-01-11 |
| CN107565767A (en) | 2018-01-09 |
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